NiGHTS into dreams... is a platforming game developed by Sonic Team. It is the first project of the studio to be developed for the Sega Saturn system. It is also the first studio experiment of creating a 3D platformer.

Plot

Every night, two worlds of human dreams appear, named Nightopia and Nightmare. One day, two teens from Twin Seeds have a terrible day. That night, both of them end up in Nightmare, reliving that bad day, but later they escape into Nightopia. They unravel the Nightmare leader wants to destroy Nightopia and release Nights, who will assist them in their fight.

Gameplay

The levels of the game are two-dimensional, while its characters are three-dimensional. The main protagonists get to Nightopia separately and have three levels otherwise known as dreams for completion. Upon spawning on the level, the protagonist gets attacked by Nightmarens who steal their spheres. The players have to transform into Nights and get all the spheres in a limited amount of time.

After finding all the spheres, the player's performance is evaluated with a rank from A to F. After that. The players are taken over to Nightmare, where a boss fight happens. After completing all the levels on a rank no lower than C, a final level is unlocked.

The game also features a multiplayer split-screen mode. Its gameplay is similar to the singleplayer mode. The first player to get all the spheres in time wins.